20215988 is an even 8-digits composite number following 20215987
and preceding 20215989 . In scientific notation, it is written as 2.0215988 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors.
There are 8924256 positive integers (up to 20215988) that are relatively prime to 20215988.
20215988 has 12 divisors, whose sum is 35498400
The reverse of 20215988 is 88951202
Previous prime number is 299
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million two hundred fifteen thousand nine hundred eighty-eight
Scientific notation
2.0215988 × 10^7
Engineering notation
2.0215988 × 10^6
Prime Factorization
2 × 2 × 299 × 16903
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10107994
Product of the distinct prime numbers
The prime factorization of 20215988 is 2 × 2 × 299 × 16903.
Since it has a total of 4 prime factors.
6 , 1 , 58 , 1 , 213 , 305 , 5843 , 7086 , 54623 , 11056 , 242587 , 473800 , 2497536 , 3841250 , 32373622 , 73352865 , 262690480 , 227204416 , 1069711597 , 4600566861
n×2
40431976
n×3
60647964
n×4
80863952
n×5
101079940
n÷2
10107994
n÷3
6738662.6666667
n÷3
5053997
n÷5
4043197.6
n2
408686170816144
n3
8.2619947249851E+21
n4
1.6702438621636E+29
n5
3.3765629874573E+36
2 √n
4496.2193007014
3 √n
272.41540117179
4 √n
67.0538537349
5 √n
28.916051810408
1 , 2 , 4 , 299 , 598 , 1196 , 16903 , 33806 , 67612 , 5053997 , 10107994 , 20215988
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20215987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20215988 can be divided by 12 positive divisors.
The sum of these divisors (counting 20215988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101000111100010110100
3
Ternary
1102001002010022
4
Quaternary
1031013202310
5
Quinary
20133402423
6
Senary
2001144312
8
Octal
115074264
10
Decimal
20215988
12
Duodecimal
692b098
16
Hexadecimal
13478b4
20
Vigesimal
666jj8
36
Base36
c1ar8
md5
cd30baaae58ced7de4a866c587144f6b
sha1
4f5886367bb3ba5616d8a3717d15febb821193e8
sha256
906d44f2e62b68badb26c46f9476302e86569fe51fb59d8ae8509719a1105d4e
sha512
08b3d60e391f271f2c45a1cc1dc4128da3928a25d3baf1de0db32e8f6bc514915c9c03f29d72e9d3f197f14394192dda26ebd75e84dc8c14775b63129e092353
ripemd-160
1d9f5847699643c689ab26d4384e0f2da74bcceb
Diameter
40431976
Circumference
127020798.77172
Area
1.2839254718597E+15
Volume
3.4607762576014E+22
Surface area
5.135701887439E+15
Circumference
127020798.77172
Perimeter
80863952
Area
408686170816144
Diagonal
28589724.406372
Surface area
2452117024896864
Volume
8.2619947249851E+21
Space diagonal
35015118.341203
Perimeter
60647964
Area
1.7696630305108E+14
Altitude
17507559.170601
Surface area
1.7696630305108E+14
Volume
9.7368541602741E+20
Height
9529908.1354572